CN105667242B - The torsion girder construction of automobile and automobile - Google Patents
The torsion girder construction of automobile and automobile Download PDFInfo
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- CN105667242B CN105667242B CN201410668457.XA CN201410668457A CN105667242B CN 105667242 B CN105667242 B CN 105667242B CN 201410668457 A CN201410668457 A CN 201410668457A CN 105667242 B CN105667242 B CN 105667242B
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Abstract
A kind of torsion girder construction of automobile and automobile, reversing girder construction includes：First crossbeam, second cross beam, the first trailing arm, the second trailing arm, the first rear car wheel support, the second rear car wheel support and the first control unit；The first end of the first crossbeam connects first trailing arm, and the second end of the first crossbeam connects first control unit；The first end of the second cross beam connects second trailing arm, and the second end of the second cross beam connects first control unit；First trailing arm connects the first rear car wheel support；Second trailing arm connects the second rear car wheel support；First control unit is suitable to obtain the difference in height of same position on the first rear car wheel support and the second rear car wheel support apart from ground, and adjusts the first end of the first crossbeam the distance between to the first end of the second cross beam according to the difference in height.
Description
Technical field
The present invention relates to the torsion girder construction of automotive field, more particularly to a kind of automobile and automobile.
Background technology
Torsion beam semi-independent suspension is widely used in automobile axle system, with simple in construction, occupies little space etc. excellent
Point.As shown in figure 1, in the prior art, reversing girder construction includes 22 groups of a trailing arm 21 of crossbeam 1 and first and the second trailing arm
Into hinge connection, rear end and the first rear car wheel support 31, the second rear car are done in the front end of two trailing arms by rubber bushing and vehicle body
Wheel support 32, spring, shock absorber etc. are connected.Whole torsion beam assembly can be swung up and down around the tie point of trailing arm front end and vehicle body,
And the effect of buffer shock-absorbing is realized by suspension element (spring, shock absorber etc.).
When both sides Suspension Deformation is not waited, torsion beam can play a part of stabilizer antiroll bar, by the torsional deflection of crossbeam,
The inclination of vehicle body and Traverse angular vibration when reducing turning driving.Therefore, crossbeam is the critical component of the semi-independent suspension of torsion girder-like,
Can not only power transmission, stress, and can effectively balance two lateral movements.
In torsion beam design at this stage, torsional rigidity value is typically to consider to determine after performance requirements.But
It is that automobile actual travel can run into a variety of road conditions, constant torsional rigidity is difficult to meet back axle system under the conditions of various road conditions
The performance requirement of system, the control stability and comfortableness of vehicle is poor.
The content of the invention
The problem of present invention is solved is that existing torsion beam design can not meet the demand of various road conditions.
To solve the above problems, the present invention provides a kind of torsion girder construction of automobile, including：First crossbeam, second cross beam,
First trailing arm, the second trailing arm, the first rear car wheel support, the second rear car wheel support and the first control unit；
The first end of the first crossbeam connects first trailing arm, the second end connection described first of the first crossbeam
Control unit；
The first end of the second cross beam connects second trailing arm, the second end connection described first of the second cross beam
Control unit；
First trailing arm connects the first rear car wheel support；
Second trailing arm connects the second rear car wheel support；
First control unit is suitable to obtain same position on the first rear car wheel support and the second rear car wheel support
Difference in height apart from ground, and the first end of the first crossbeam is adjusted to the first of the second cross beam according to the difference in height
The distance between end.
Optionally, first control unit includes：
Acquiring unit, suitable for same position on acquisition the first rear car wheel support and the second rear car wheel support apart from ground
Height；
Memory cell, suitable for same position on preservation the first rear car wheel support and the second rear car wheel support apart from ground
Difference in height and the first crossbeam first end to the distance between the first end of the second cross beam the first corresponding relation；
Phase on processing unit, the first rear car wheel support and the second rear car wheel support suitable for calculating the acquiring unit acquisition
With the difference in height on positional distance ground, distance corresponding with the difference in height is obtained according to first corresponding relation, output and
It is described apart from corresponding control signal；
Execution unit, suitable for the first end according to the control signal regulation first crossbeam to the second cross beam
The distance between first end.
Optionally, the acquiring unit includes the first range sensor and second distance sensor；
First range sensor is arranged on the first rear car wheel support；
The second distance sensor is arranged on the second rear car wheel support；
Position of first range sensor on the first rear car wheel support exists with the second distance sensor
Position on the second rear car wheel support is identical.
Optionally, the execution unit includes：Suitable for receiving the first stepper motor of the control signal, and it is arranged on
The first transmission mechanism on the output shaft and the first crossbeam of first stepper motor.
Optionally, the execution unit also includes：The second stepper motor suitable for receiving the control signal, and install
The second transmission mechanism on second stepper motor output shaft and the second cross beam.
Optionally, first transmission mechanism be rack and pinion drive mechanism, slider-crank mechanism or cam mechanism, it is described
Second transmission mechanism is rack and pinion drive mechanism, slider-crank mechanism or cam mechanism.
Optionally, the torsion girder construction of the automobile also includes：Second control unit；
Second control unit is suitable to tighten up the first crossbeam and second cross beam.
Optionally, second control unit be suitable to first control unit fail or receive fastening instruction when will
The first crossbeam and second cross beam are tightened up.
Optionally, second control unit be electromagnetic actuator, the first crossbeam and second cross beam have with it is described
The groove that electromagnetic actuator coordinates.
The embodiment of the present invention also provides a kind of automobile, includes the torsion girder construction of above-mentioned automobile.
Compared with prior art, technical scheme has advantages below：The torsion girder construction of the embodiment of the present invention
Torsion beam rigidity can be adjusted according to different road conditions, the performance of rear bridge system is optimized, the stable operation of automobile is improved
Property and ride comfort.
Brief description of the drawings
Fig. 1 is the structural representation of existing torsion girder construction；
Fig. 2 is the structural representation of the torsion girder construction of the embodiment of the present invention；
Fig. 3 is the structural representation of the first control unit of the embodiment of the present invention；
Fig. 4 is the torsional rigidity of the embodiment of the present invention and the graph of a relation of distance；
Fig. 5 is the structural representation of the execution unit of the embodiment of the present invention；
Fig. 6 is the structural representation of the second control unit of the embodiment of the present invention.
Embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
As shown in Fig. 2 the embodiment of the present invention provides a kind of torsion girder construction of automobile, including first crossbeam 11, second is horizontal
Beam 12, the first trailing arm 21, the second trailing arm 22, the first rear car wheel support 31, the second rear car wheel support 32 and the first control unit 4.
The first end 111 of first crossbeam 11 connects the first trailing arm 21, and the second end 112 connection first of first crossbeam 11 is controlled
Unit 4.The first end 121 of second cross beam 12 connects the second trailing arm 22, and the control of the second end 122 connection first of second cross beam 12 is single
Member 4.First trailing arm 21 connects the first rear car wheel support 31, and the second trailing arm 22 connects the second rear car wheel support 32.First control is single
Member 4 is suitable to obtain the difference in height of same position on the first rear car wheel support 31 and the second rear car wheel support 32 apart from ground, and according to
The first end 111 of first crossbeam 11 is adjusted the distance between to the first end 121 of second cross beam 12 according to the difference in height.
The first end 111 of first crossbeam 11 can be connected with the remainder in addition to the two ends of the first trailing arm 21, connected mode
Can for welding or other be fixedly connected with mode.The first end 121 of second cross beam 12 and its in addition to the two ends of the second trailing arm 22
Remaining part point can be connected, connected mode can for welding or other be fixedly connected with mode.The company of the trailing arm 21 of first crossbeam 11 and first
Connect mode, and second cross beam 12 and the second trailing arm 22 connected mode can be with existing crossbeam and trailing arm connected mode phase
Together.Unlike, prior art is that a crossbeam is connected with two trailing arms respectively, and the embodiment of the present invention is two crossbeam difference
It is connected with two trailing arms.
The connected mode of the control unit 4 of first crossbeam 11 and first is drive connection, and the control of second cross beam 12 and first is single
The connected mode of member 4 is also drive connection, this allow the first control unit 4 adjust the first end 111 of first crossbeam 11 to
The distance between first end 121 of second cross beam 12.
The connected mode of first trailing arm 21 and the second trailing arm 22 and the first rear car wheel support 31 and the second rear car wheel support 32
It can be connected with same as the prior art by trailing arm rear end, here is omitted.After first trailing arm 21 and the second trailing arm 22
End can also connect the suspension elements such as shock absorber and spring.The front end of first trailing arm 21 and the second trailing arm 22 can by bushing with
Vehicle body does hinge connection.The torsion girder construction can be swung up and down around the front end of the first trailing arm 21 and the second trailing arm 22, with first
The spring and shock absorber of the rear end connection of the trailing arm 22 of trailing arm 21 and second can be to swinging into row buffering and vibration damping.
In vehicle traveling process, first crossbeam 11 and second cross beam 12 twist deformation, it is possible to reduce during turning driving
The inclination of vehicle body and Traverse angular vibration.In order to adapt to different road conditions, after the first control unit 4 of this implementation can obtain first
On the rear car wheel support 32 of wheel stand 31 and second same position apart from ground difference in height, residing for the difference in height and current automobile
Road conditions are related.
As shown in figure 3, the first control unit 4 can include：
Acquiring unit 41, suitable for obtain on the first rear car wheel support 31 and the second rear car wheel support 32 same position away from
Height from the ground；
Memory cell 42, suitable for preserve on the first rear car wheel support 31 and the second rear car wheel support 32 same position away from
The first end 111 of difference in height from the ground and the first crossbeam 11 is to the distance between the first end 121 of second cross beam 12
First corresponding relation；
Processing unit 43, suitable for calculating the first rear car wheel support 31 and the second rear wheel branch that the acquiring unit 41 is obtained
On frame 32 same position apart from ground difference in height, according to first corresponding relation obtain it is corresponding with the difference in height away from
From output is with described apart from corresponding control signal；
Execution unit 44, the first end 111 to second suitable for adjusting the first crossbeam 11 according to the control signal is horizontal
The distance between first end 121 of beam 12.
The acquiring unit 41 can include：First range sensor and second distance sensor.First range sensor
On the first rear car wheel support 31.The second distance sensor is arranged on the second rear car wheel support 32.Described first
Position of the range sensor on the first rear car wheel support 31 is with the second distance sensor on the second rear car wheel support 32
Position it is identical.For example, the first range sensor is arranged on the tie point of the first rear car wheel support 31 and the first trailing arm 21, the
Two range sensors are arranged on the tie point of the second rear car wheel support 32 and the second trailing arm 22.
The first corresponding relation that memory cell 42 is preserved can be set up according to both with the corresponding relation of torsional rigidity.
That is, difference in height and torsion beam rigidity has certain corresponding relation, and the first end 111 of torsion beam rigidity and first crossbeam 11 to
There is certain corresponding relation between the first end 121 of second cross beam 12.
The corresponding relation of difference in height and torsion beam rigidity can pass through emulation and examination according to the handling and ride comfort of automobile
Foundation is tested, the corresponding relation that different automobiles is drawn may be different.Difference in height can be many-to-one with torsion beam rigidity
Corresponding relation, i.e. one torsional rigidity of a range of difference in height correspondence, a range of difference in height can represent a kind of
Road conditions.
The first end 111 of torsion beam rigidity and first crossbeam 11 is to the distance between the first end 121 of second cross beam 12
Corresponding relation can also be set up by emulating and testing.As shown in figure 4, passing through CAE (Computer Aided
Engineering) two methods of simulation calculation and bench test, can set up first end of the torsional rigidity with first crossbeam 11
111 to the distance between the first end 121 of second cross beam 12 L variation relation, and formation is fitted by corresponding algorithm
Function K (L), can obtain any torsional rigidity K_goal corresponding apart from L1 by the corresponding relation.
As shown in figure 5, execution unit 44 can include the first stepper motor for being suitable to receive the control signal, Yi Jian
The first transmission mechanism 442 on the output shaft 441 and the first crossbeam 11 of first stepper motor.
First transmission mechanism 442 can be rack and pinion drive mechanism, slider-crank mechanism or cam mechanism.Fig. 5 is with tooth
Take turns exemplified by rack gear, gear is installed on the output shaft 441 of the first stepper motor, rack is arranged on first crossbeam 11
On, for convenience, can also directly on first crossbeam 11 manufacturing gear strip with formed with gear coordinate transmission mechanism.When first
When stepper motor receives the control signal of the output of processing unit 43, the gear being attached thereto can be driven by output shaft 441
Rotation, and then drive first crossbeam 11 to move, so as to reach the first end 111 of adjustment first crossbeam 11 to the of second cross beam 12
The distance between one end 121.
Similar, execution unit 44 can also include the second stepper motor for being suitable to receive the control signal, Yi Jian
The second transmission mechanism 444 on the output shaft 443 and the second cross beam 12 of second stepper motor.
Second transmission mechanism 444 can be rack and pinion drive mechanism, slider-crank mechanism or cam mechanism.Still with gear
Exemplified by rack gear, gear is installed on the output shaft 443 of the second stepper motor, rack is arranged on second cross beam 12,
For convenience, can also directly on second cross beam 12 manufacturing gear strip with formed with gear coordinate transmission mechanism.Work as second step
When stepper motor receives the control signal of the output of processing unit 43, by output shaft 443 gear being attached thereto can be driven to revolve
Turn, and then drive second cross beam 12 to move, so as to reach the first end 111 of adjustment first crossbeam 11 to the first of second cross beam 12
End the distance between 121.
In order to preferably balance first crossbeam 11 and the movable length of second cross beam 12, the total length of required movement can be put down
Respectively it is assigned on first crossbeam 11 and second cross beam 12.If for example, the first end 111 of current first crossbeam 11 is to second cross beam 12
The distance between first end 121 be L1, and required distance is L2, then the first stepper motor and the second stepper motor need difference
The distance of mobile first crossbeam 11 and second cross beam 12 is (L1-L2)/2.
First stepper motor and the second stepper motor can be fixedly installed in a certain mechanism.
Torsion girder construction described in the present embodiment can also include the second control unit, and second control unit is suitable to will
The first crossbeam 11 and second cross beam 12 are tightened up.Specifically, second control unit is suitable in the described first control
Unit 4 fail or receive fastening instruction when the first crossbeam and second cross beam tighten up.The fastening instruction can be according to
Indicate and produce according to the fastening of user vehicle, for example, configuration of automobiles has the button for producing fastening instruction, user triggers the row of button
Indicated for as fastening.
As shown in fig. 6, the second control unit can include：Electromagnetic actuator, first crossbeam 11 and second cross beam 12 have
The groove coordinated with electromagnetic actuator.Electromagnetic actuator includes lock 51, spring 52 and electromagnet 53.In the case of energization, electricity
Electromagnet 53 in magnetic actuator is pulled down 51 devices are latched, and make lock 51 is inserted into first crossbeam 11 and second cross beam 12
Groove in, then first crossbeam 11 and second cross beam 12 are tightened up.When electromagnetic actuator is powered off, lock 51 is by spring 52
Original position is recoiled to, first crossbeam 11 and second cross beam 12 release tightening state.
The embodiment of the present invention also provides a kind of automobile, including the torsion girder construction described in above-described embodiment.The present embodiment institute
The automobile stated increases in control stability and comfortableness compared with prior art.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, are not departing from this
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
The scope of restriction is defined.
Claims (10)
1. a kind of torsion girder construction of automobile, it is characterised in that including：First crossbeam, second cross beam, the first trailing arm, second are indulged
Arm, the first rear car wheel support, the second rear car wheel support and the first control unit；
The first end of the first crossbeam connects first trailing arm, the second end connection first control of the first crossbeam
Unit；
The first end of the second cross beam connects second trailing arm, the second end connection first control of the second cross beam
Unit；
First trailing arm connects the first rear car wheel support；
Second trailing arm connects the second rear car wheel support；
First control unit is suitable to obtain same position distance on the first rear car wheel support and the second rear car wheel support
The difference in height on ground, and according to the difference in height adjust the first end of the first crossbeam to the second cross beam first end it
Between distance.
2. the torsion girder construction of automobile as claimed in claim 1, it is characterised in that first control unit includes：
Acquiring unit, suitable for obtaining height of the same position apart from ground on the first rear car wheel support and the second rear car wheel support
Degree；
Memory cell, suitable for preserving height of the same position apart from ground on the first rear car wheel support and the second rear car wheel support
The first end of the poor and first crossbeam is spent to the first corresponding relation of the distance between the first end of the second cross beam；
Identical bits on processing unit, the first rear car wheel support and the second rear car wheel support suitable for calculating the acquiring unit acquisition
Put the difference in height apart from ground, corresponding with difference in height distance obtained according to first corresponding relation, export with it is described
Apart from corresponding control signal；
Execution unit, suitable for the first end according to the control signal regulation first crossbeam to the first of the second cross beam
The distance between end.
3. the torsion girder construction of automobile as claimed in claim 2, it is characterised in that the acquiring unit includes the first distance and passed
Sensor and second distance sensor；
First range sensor is arranged on the first rear car wheel support；
The second distance sensor is arranged on the second rear car wheel support；
Position of first range sensor on the first rear car wheel support is with the second distance sensor described
Position on second rear car wheel support is identical.
4. the torsion girder construction of automobile as claimed in claim 2, it is characterised in that the execution unit includes：Suitable for receiving
First stepper motor of the control signal, and on the output shaft and the first crossbeam of first stepper motor
The first transmission mechanism.
5. the torsion girder construction of automobile as claimed in claim 4, it is characterised in that the execution unit also includes：Suitable for connecing
The second stepper motor of the control signal is received, and on second stepper motor output shaft and the second cross beam
The second transmission mechanism.
6. the torsion girder construction of automobile as claimed in claim 5, it is characterised in that first transmission mechanism is rack-and-pinion
Transmission mechanism, slider-crank mechanism or cam mechanism, second transmission mechanism are rack and pinion drive mechanism, crank block machine
Structure or cam mechanism.
7. the torsion girder construction of automobile as claimed in claim 1, it is characterised in that also include：Second control unit；
Second control unit is suitable to tighten up the first crossbeam and second cross beam.
8. the torsion girder construction of automobile as claimed in claim 7, it is characterised in that second control unit is suitable to described
First control unit, which is failed or received when fastening is instructed, tightens up the first crossbeam and second cross beam.
9. the torsion girder construction of automobile as claimed in claim 7, it is characterised in that second control unit is electromagnetic activation
Device, the first crossbeam and second cross beam have the groove coordinated with the electromagnetic actuator.
10. a kind of automobile, it is characterised in that the torsion beam knot including the automobile described in claim 1 to 9 any claim
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668457.XA CN105667242B (en) | 2014-11-20 | 2014-11-20 | The torsion girder construction of automobile and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668457.XA CN105667242B (en) | 2014-11-20 | 2014-11-20 | The torsion girder construction of automobile and automobile |
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| Publication Number | Publication Date |
|---|---|
| CN105667242A CN105667242A (en) | 2016-06-15 |
| CN105667242B true CN105667242B (en) | 2017-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410668457.XA Active CN105667242B (en) | 2014-11-20 | 2014-11-20 | The torsion girder construction of automobile and automobile |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105667242A (en) | 2016-06-15 |
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